Hydrocal White Gypsum Cement – 10lbs

USG Hydrocal White Gypsum Cement is designed for both solid and hollow casting. It offers a higher degree of hardness and impact resistance than pottery plaster, and will hold detail longer with repeat castings. It has long workability; setting expansion twice that of molding plaster and pottery plaster

It is also compatible with numerous color pigments.

MIX RATIO: The manufacture recommended mix-ratio of White Hydro Cal is: 45 parts water to 100 parts Hydro Cal by weight. The average setup time is 25-35 minutes when manually mixed.

WARNING This product is for making molds of clay and industrial patterns only. When mixed with water, Hydro Cal hardens and then becomes very hot. DO NOT attempt to make a mold enclosing any part of the body using this material. Failure to follow these instructions can cause severe chemical burns that may require surgical removal of affected tissue. Dust from this product may cause eye, skin, nose, throat, or respiratory irritation. Use eye, skin, and respiratory protection in accordance with good industrial hygiene practices.

Larger sizes available in-store only.